/* Mission Control Chat — Styles */

/* ═══════════════════════════════════════
   Theme Variables
   ═══════════════════════════════════════ */

:root {
  --chat-bg: #f5f5f5;
  --chat-text: #1a1a1a;
  --msg-user-bg: #3b82f6;
  --msg-user-text: #ffffff;
  --msg-agent-bg: #e5e7eb;
  --msg-agent-text: #1a1a1a;
  --input-bg: #ffffff;
  --input-border: #d1d5db;
  --input-text: #1a1a1a;
  --autocomplete-bg: #ffffff;
  --autocomplete-hover: #f3f4f6;
  --table-header-bg: #f9fafb;
  --table-border: #e5e7eb;
  --code-bg: #1e293b;
  --code-text: #e2e8f0;
  --chart-grid: #e5e7eb;
  --chart-text: #374151;
  --header-bg: #ffffff;
  --header-border: #e5e7eb;
  --banner-warn-bg: #fef3c7;
  --banner-warn-text: #92400e;
  --banner-error-bg: #fee2e2;
  --banner-error-text: #991b1b;
  --tasks-bar-bg: #eff6ff;
  --tasks-bar-text: #1e40af;
  --scrollbar-track: #f1f1f1;
  --scrollbar-thumb: #c1c1c1;
  --lightbox-bg: rgba(0,0,0,0.8);
}

body.dark-theme {
  --chat-bg: #111827;
  --chat-text: #f3f4f6;
  --msg-user-bg: #2563eb;
  --msg-user-text: #ffffff;
  --msg-agent-bg: #1f2937;
  --msg-agent-text: #f3f4f6;
  --input-bg: #1f2937;
  --input-border: #374151;
  --input-text: #f3f4f6;
  --autocomplete-bg: #1f2937;
  --autocomplete-hover: #374151;
  --table-header-bg: #1f2937;
  --table-border: #374151;
  --code-bg: #0f172a;
  --code-text: #e2e8f0;
  --chart-grid: #374151;
  --chart-text: #d1d5db;
  --header-bg: #1f2937;
  --header-border: #374151;
  --banner-warn-bg: #78350f;
  --banner-warn-text: #fef3c7;
  --banner-error-bg: #7f1d1d;
  --banner-error-text: #fee2e2;
  --tasks-bar-bg: #1e3a5f;
  --tasks-bar-text: #93c5fd;
  --scrollbar-track: #1f2937;
  --scrollbar-thumb: #4b5563;
  --lightbox-bg: rgba(0,0,0,0.9);
}

/* ═══════════════════════════════════════
   Base Layout
   ═══════════════════════════════════════ */

body {
  background: var(--chat-bg);
  color: var(--chat-text);
  font-family: ui-sans-serif, system-ui, -apple-system, sans-serif;
  margin: 0;
  padding: 0;
  height: 100vh;
  overflow: hidden;
}

/* ═══════════════════════════════════════
   Chat page layout (sidebar + main)
   ═══════════════════════════════════════ */

.chat-page-header .chat-header-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-left: auto;
}

.chat-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  height: calc(100vh - var(--header-height));
  margin-left: var(--sidebar-width);
  transition: margin-left 0.2s ease;
}

.mc-layout.sidebar-collapsed .chat-main {
  margin-left: var(--sidebar-collapsed);
}

/* ═══════════════════════════════════════
   WS Status Indicator
   ═══════════════════════════════════════ */

.ws-status {
  font-size: 1.5rem;
  line-height: 1;
}

.ws-status.connected { color: #10b981; }
.ws-status.reconnecting { color: #f59e0b; }
.ws-status.disconnected { color: #ef4444; }

/* ═══════════════════════════════════════
   Active Tasks Bar
   ═══════════════════════════════════════ */

.active-tasks-bar {
  background: var(--tasks-bar-bg);
  color: var(--tasks-bar-text);
  padding: 0.5rem 1.5rem;
  font-size: 0.8125rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-shrink: 0;
  flex-wrap: wrap;
}

.active-tasks-bar .task-tag {
  background: rgba(59, 130, 246, 0.15);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.active-tasks-bar .task-tag .task-time {
  opacity: 0.7;
  font-size: 0.75rem;
}

/* ═══════════════════════════════════════
   Reconnect Banner
   ═══════════════════════════════════════ */

.reconnect-banner {
  padding: 0.5rem 1.5rem;
  font-size: 0.8125rem;
  text-align: center;
  flex-shrink: 0;
}

.reconnect-banner.warn {
  background: var(--banner-warn-bg);
  color: var(--banner-warn-text);
}

.reconnect-banner.error {
  background: var(--banner-error-bg);
  color: var(--banner-error-text);
}

/* ═══════════════════════════════════════
   Chat Container & Messages
   ═══════════════════════════════════════ */

.chat-container {
  flex: 1;
  overflow-y: auto;
  padding: 1.25rem 0;
  display: flex;
  flex-direction: column;
}

.chat-messages {
  max-width: 900px;
  width: 100%;
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* ── Base message ── */
.chat-message {
  max-width: 100%;
  line-height: 1.6;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

/* ── Sender header ── */
.msg-sender {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.375rem;
}

.msg-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.msg-avatar svg {
  width: 14px;
  height: 14px;
}

.msg-avatar.user {
  background: var(--msg-user-bg);
  color: var(--msg-user-text);
}

.msg-avatar.agent {
  background: rgba(99, 102, 241, 0.15);
  color: #818cf8;
}

.msg-avatar.system {
  background: rgba(107, 114, 128, 0.15);
  color: #9ca3af;
}

.msg-name {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--chat-text);
}

.msg-time {
  font-size: 0.6875rem;
  color: var(--chat-text);
  opacity: 0.4;
}

/* ── User messages: plain text, no card ── */
.chat-message.user .msg-body {
  padding-left: 2.25rem; /* align with text after avatar */
  font-size: 0.9375rem;
  color: var(--chat-text);
}

/* ── Agent messages: card wrapper ── */
.chat-message.agent .msg-card {
  margin-left: 2.25rem;
  background: var(--msg-agent-bg);
  border: 1px solid var(--table-border);
  border-radius: 10px;
  padding: 0.875rem 1rem;
  font-size: 0.9375rem;
  color: var(--msg-agent-text);
  overflow: hidden;
  min-width: 0;
  position: relative;
}

.chat-message.system.rich .msg-card {
  background: var(--msg-agent-bg);
  border: 1px solid var(--table-border);
  border-radius: 10px;
  padding: 0.875rem 1rem;
  font-size: 0.9375rem;
  color: var(--msg-agent-text);
  overflow: hidden;
  min-width: 0;
  position: relative;
}

.msg-card > *:first-child { margin-top: 0; }
.msg-card > *:last-child { margin-bottom: 0; }

/* ── Copy action bar ── */
.msg-actions {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  display: flex;
  gap: 0.25rem;
  opacity: 0;
  transition: opacity 0.15s ease;
  z-index: 5;
}

.msg-card:hover .msg-actions {
  opacity: 1;
}

.msg-action-btn {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--table-border);
  border-radius: 6px;
  background: var(--header-bg);
  color: var(--chat-text);
  opacity: 0.6;
  cursor: pointer;
  transition: all 0.15s ease;
  padding: 0;
}

.msg-action-btn svg {
  width: 14px;
  height: 14px;
}

.msg-action-btn:hover {
  opacity: 1;
  background: var(--autocomplete-hover);
}

.msg-action-btn.copied {
  opacity: 1;
  border-color: #10b981;
  color: #10b981;
  background: rgba(16, 185, 129, 0.1);
}

.msg-action-btn.copied::after {
  content: '';
}

/* ── System messages: centered, minimal ── */
.chat-message.system:not(.rich) {
  align-self: center;
  text-align: center;
  font-size: 0.8125rem;
  color: var(--chat-text);
  opacity: 0.5;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  justify-content: center;
}

.msg-time-inline {
  font-size: 0.6875rem;
  opacity: 0.6;
}

/* ═══════════════════════════════════════
   Text Block (Markdown)
   ═══════════════════════════════════════ */

.chat-message .text-block p {
  margin: 0 0 0.5rem 0;
}

.chat-message .text-block p:last-child {
  margin-bottom: 0;
}

.chat-message .text-block ul,
.chat-message .text-block ol {
  margin: 0.25rem 0 0.5rem 1.25rem;
}

.chat-message .text-block a {
  color: #60a5fa;
  text-decoration: none;
}

.chat-message .text-block a:hover {
  text-decoration: underline;
}

.chat-message .text-block h1,
.chat-message .text-block h2,
.chat-message .text-block h3 {
  margin: 0.75rem 0 0.375rem;
  font-weight: 600;
  color: var(--chat-text);
}

.chat-message .text-block h1 { font-size: 1.125rem; }
.chat-message .text-block h2 { font-size: 1rem; }
.chat-message .text-block h3 { font-size: 0.9375rem; }

.chat-message .text-block code {
  background: rgba(0, 0, 0, 0.15);
  border-radius: 4px;
  padding: 0.125rem 0.375rem;
  font-family: ui-monospace, 'SF Mono', monospace;
  font-size: 0.8125rem;
}

body.dark-theme .chat-message .text-block code {
  background: rgba(255, 255, 255, 0.08);
}

.chat-message .text-block blockquote {
  margin: 0.5rem 0;
  padding: 0.375rem 0.75rem;
  border-left: 3px solid var(--table-border);
  opacity: 0.8;
}

.chat-message .text-block table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
  margin: 0.5rem 0;
}

.chat-message .text-block th,
.chat-message .text-block td {
  padding: 0.375rem 0.625rem;
  border: 1px solid var(--table-border);
  text-align: left;
}

.chat-message .text-block th {
  background: var(--table-header-bg);
  font-weight: 600;
}

.chat-message .text-block hr {
  border: none;
  border-top: 1px solid var(--table-border);
  margin: 0.75rem 0;
}

/* ═══════════════════════════════════════
   Table Block
   ═══════════════════════════════════════ */

.table-block {
  margin: 0.5rem 0;
  overflow: hidden;
}

.table-block .table-toolbar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.table-block .table-search {
  flex: 1;
  padding: 0.35rem 0.6rem;
  border: 1px solid var(--table-border);
  border-radius: 6px;
  background: var(--input-bg);
  color: var(--input-text);
  font-size: 0.8125rem;
}

.table-block .table-export-btn {
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--table-border);
  border-radius: 6px;
  background: none;
  color: var(--chat-text);
  cursor: pointer;
  font-size: 0.75rem;
  white-space: nowrap;
}

.table-block .table-export-btn:hover {
  background: var(--autocomplete-hover);
}

.table-block .table-wrapper {
  overflow-x: auto;
  border-radius: 8px;
  border: 1px solid var(--table-border);
}

.table-block table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
}

.table-block th {
  background: var(--table-header-bg);
  padding: 0.5rem 0.75rem;
  text-align: left;
  font-weight: 600;
  border-bottom: 1px solid var(--table-border);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

.table-block th:hover {
  opacity: 0.8;
}

.table-block th .sort-arrow {
  margin-left: 0.3rem;
  font-size: 0.6875rem;
  opacity: 0.5;
}

.table-block th .sort-arrow.active {
  opacity: 1;
}

.table-block td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--table-border);
}

.table-block tr:last-child td {
  border-bottom: none;
}

/* ═══════════════════════════════════════
   Code Block
   ═══════════════════════════════════════ */

.code-block {
  position: relative;
  margin: 0.5rem 0;
  border-radius: 8px;
  overflow: hidden;
}

.code-block .code-header {
  background: rgba(0,0,0,0.3);
  padding: 0.35rem 0.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
}

.code-block .code-lang {
  opacity: 0.7;
  text-transform: uppercase;
  font-size: 0.6875rem;
  letter-spacing: 0.05em;
}

.code-block .code-copy-btn {
  background: none;
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--code-text);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.6875rem;
}

.code-block .code-copy-btn:hover {
  background: rgba(255,255,255,0.1);
}

.code-block pre {
  background: var(--code-bg);
  color: var(--code-text);
  padding: 0.75rem 1rem;
  margin: 0;
  overflow-x: auto;
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 0.8125rem;
  line-height: 1.5;
}

.code-block code {
  font-family: inherit;
}

/* ═══════════════════════════════════════
   Image Block
   ═══════════════════════════════════════ */

.image-block {
  margin: 0.5rem 0;
}

.image-block img {
  max-width: 100%;
  border-radius: 8px;
  cursor: pointer;
  transition: opacity 0.2s;
}

.image-block img:hover {
  opacity: 0.9;
}

.image-block .image-caption {
  font-size: 0.75rem;
  opacity: 0.6;
  margin-top: 0.3rem;
}

/* Lightbox */
.lightbox-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--lightbox-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  cursor: pointer;
}

.lightbox-overlay img {
  max-width: 95vw;
  max-height: 95vh;
  border-radius: 4px;
}

/* ═══════════════════════════════════════
   Progress Block
   ═══════════════════════════════════════ */

.progress-block {
  margin: 0.5rem 0;
}

.progress-block .progress-label {
  font-size: 0.8125rem;
  margin-bottom: 0.3rem;
  display: flex;
  justify-content: space-between;
}

.progress-block .progress-bar-track {
  width: 100%;
  height: 8px;
  background: rgba(128,128,128,0.2);
  border-radius: 4px;
  overflow: hidden;
}

.progress-block .progress-bar-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.3s ease;
  background: #3b82f6;
}

.progress-block .progress-bar-fill.success { background: #10b981; }
.progress-block .progress-bar-fill.warning { background: #f59e0b; }
.progress-block .progress-bar-fill.danger { background: #ef4444; }

/* ═══════════════════════════════════════
   Action Buttons
   ═══════════════════════════════════════ */

.action-buttons {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin: 0.5rem 0;
}

.action-btn {
  padding: 0.4rem 0.9rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8125rem;
  font-weight: 500;
  transition: all 0.2s;
}

.action-btn.primary { background: #3b82f6; color: #fff; }
.action-btn.primary:hover { background: #2563eb; }
.action-btn.secondary { background: #4b5563; color: #fff; }
.action-btn.secondary:hover { background: #374151; }
.action-btn.danger { background: #ef4444; color: #fff; }
.action-btn.danger:hover { background: #dc2626; }
.action-btn.success { background: #10b981; color: #fff; }
.action-btn.success:hover { background: #059669; }

/* ═══════════════════════════════════════
   Chart / Diagram Containers
   ═══════════════════════════════════════ */

.chart-container {
  margin: 0.5rem 0;
  padding: 1rem;
  background: var(--msg-agent-bg);
  border-radius: 8px;
  max-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--chart-text);
  font-size: 0.875rem;
  position: relative;
}

.chart-container canvas {
  max-height: 360px;
  width: 100% !important;
}

.diagram-container {
  margin: 0.5rem 0;
  padding: 1rem;
  background: var(--msg-agent-bg);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--chart-text);
  font-size: 0.875rem;
  overflow-x: auto;
}

.diagram-container svg {
  max-width: 100%;
  height: auto;
}

/* ═══════════════════════════════════════
   Loading Placeholder
   ═══════════════════════════════════════ */

.loading-placeholder {
  padding: 2rem;
  text-align: center;
  opacity: 0.6;
  font-style: italic;
}

/* ═══════════════════════════════════════
   Status Cards Grid
   ═══════════════════════════════════════ */

.status-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.5rem;
  margin: 0.5rem 0;
  width: 100%;
}

.status-card {
  background: rgba(128,128,128,0.1);
  border: 1px solid var(--table-border);
  border-radius: 8px;
  padding: 0.6rem 0.75rem;
}

.status-card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.8125rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-dot.online { background: #10b981; }
.status-dot.idle, .status-dot.stale { background: #f59e0b; }
.status-dot.offline, .status-dot.unknown { background: #6b7280; }
.status-dot.error { background: #ef4444; }

.status-card-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.status-card-time {
  font-size: 0.6875rem;
  opacity: 0.6;
  margin-top: 0.2rem;
}

.fleet-action-btn {
  margin-top: 0.375rem;
  width: 100%;
  padding: 0.25rem 0;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  transition: all 0.2s;
}

.fleet-action-btn.primary { background: rgba(59, 130, 246, 0.15); color: #60a5fa; }
.fleet-action-btn.primary:hover { background: rgba(59, 130, 246, 0.3); }
.fleet-action-btn.danger { background: rgba(239, 68, 68, 0.12); color: #f87171; }
.fleet-action-btn.danger:hover { background: rgba(239, 68, 68, 0.25); }

.status-card-role {
  font-size: 0.6875rem;
  opacity: 0.5;
  margin-top: 0.15rem;
}

/* ═══════════════════════════════════════
   Report Embed Card
   ═══════════════════════════════════════ */

.report-embed {
  margin: 0.5rem 0;
  border: 1px solid var(--table-border);
  border-radius: 8px;
  overflow: hidden;
}

.report-embed-header {
  background: var(--table-header-bg);
  padding: 0.5rem 0.75rem;
  font-weight: 600;
  font-size: 0.8125rem;
  border-bottom: 1px solid var(--table-border);
}

.report-embed-body {
  padding: 0.75rem;
  font-size: 0.8125rem;
  line-height: 1.5;
}

.report-embed-body p {
  margin: 0 0 0.5rem 0;
}

.report-embed-body p:last-child {
  margin-bottom: 0;
}

/* ═══════════════════════════════════════
   Inline Confirmation
   ═══════════════════════════════════════ */

.confirm-inline {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
  padding: 0.4rem 0.6rem;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 6px;
  font-size: 0.8125rem;
}

.confirm-inline .confirm-msg {
  flex: 1;
  font-weight: 500;
}

.confirm-inline .action-btn {
  padding: 0.25rem 0.6rem;
  font-size: 0.75rem;
}

/* ═══════════════════════════════════════
   System Message — Rich variant overrides
   ═══════════════════════════════════════ */

.chat-message.system.rich {
  opacity: 1;
  text-align: left;
  align-self: flex-start;
  max-width: 100%;
}

/* ═══════════════════════════════════════
   highlight.js overrides
   ═══════════════════════════════════════ */

.code-block pre code.hljs {
  background: var(--code-bg);
  padding: 0;
}

/* ═══════════════════════════════════════
   Typing Indicator
   ═══════════════════════════════════════ */

.typing-indicator {
  max-width: 900px;
  width: 100%;
  margin: 0 auto;
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
  color: var(--chat-text);
  opacity: 0.6;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.typing-dots span {
  animation: typingDot 1.4s infinite;
  font-weight: bold;
  font-size: 1.25rem;
  line-height: 1;
}

.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingDot {
  0%, 60%, 100% { opacity: 0.3; }
  30% { opacity: 1; }
}

/* ═══════════════════════════════════════
   Autocomplete Dropdown
   ═══════════════════════════════════════ */

.command-autocomplete {
  position: fixed;
  bottom: 70px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 2rem);
  max-width: 900px;
  background: var(--autocomplete-bg);
  border: 1px solid var(--input-border);
  border-radius: 8px;
  box-shadow: 0 -4px 16px rgba(0,0,0,0.2);
  max-height: 320px;
  overflow-y: auto;
  z-index: 40;
}

.command-autocomplete .autocomplete-item {
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  font-size: 0.8125rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.command-autocomplete .autocomplete-item:hover,
.command-autocomplete .autocomplete-item.selected {
  background: var(--autocomplete-hover);
}

.command-autocomplete .autocomplete-item .cmd-name {
  font-weight: 600;
  white-space: nowrap;
}

.command-autocomplete .autocomplete-item .cmd-desc {
  opacity: 0.6;
  font-size: 0.75rem;
  text-align: right;
}

/* ═══════════════════════════════════════
   Input Bar
   ═══════════════════════════════════════ */

.chat-input-bar {
  padding: 0.75rem 1rem;
  background: var(--header-bg);
  border-top: 1px solid var(--header-border);
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
  max-width: 900px;
  width: 100%;
  margin: 0 auto;
  flex-shrink: 0;
}

.chat-input {
  flex: 1;
  resize: none;
  border: 1px solid var(--input-border);
  border-radius: 8px;
  padding: 0.6rem 0.75rem;
  background: var(--input-bg);
  color: var(--input-text);
  font-family: inherit;
  font-size: 0.875rem;
  line-height: 1.4;
  max-height: 7rem; /* ~5 rows */
  overflow-y: auto;
}

.chat-input:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 2px rgba(59,130,246,0.25);
}

.chat-send-btn {
  padding: 0.6rem 1.25rem;
  background: #3b82f6;
  color: #fff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 600;
  transition: background 0.2s;
  flex-shrink: 0;
}

.chat-send-btn:hover {
  background: #2563eb;
}

.chat-send-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ═══════════════════════════════════════
   Scrollbar (dark theme)
   ═══════════════════════════════════════ */

.chat-container::-webkit-scrollbar {
  width: 8px;
}

.chat-container::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}

.chat-container::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 4px;
}

.chat-container::-webkit-scrollbar-thumb:hover {
  background: #6b7280;
}

/* ═══════════════════════════════════════
   Responsive
   ═══════════════════════════════════════ */

@media (max-width: 768px) {
  .chat-main {
    margin-left: 0 !important;
  }
}

@media (max-width: 640px) {
  .chat-messages {
    padding: 0 0.5rem;
    gap: 1rem;
  }

  .chat-message.agent .msg-card,
  .chat-message.system.rich .msg-card {
    margin-left: 0;
    border-radius: 8px;
    padding: 0.75rem;
  }

  .chat-message.user .msg-body {
    padding-left: 0;
  }

  .chat-input-bar {
    padding: 0.5rem;
  }
}